Cutting-tool



F. MUNGERV. cumNG T ooL. APPLICATION HLE'D JUNE l, mo.

UNl'lED earner oren.

FREDERICK MUNGEB, OF ELLSVfOltTI-, NEBRASKA, ASSIGNR OF ONE-HLLF TO C. VON 'WEHRi/hl, 0F T'ILL CETTZ", SQUT-I DAKOTA.

CUTTNG-TOOL.

naeaaia.

Specification of Letters Patent.

Patented June 21,1921.

.application filed .Tune l, 1920. Serial No. 385,649.

T0 all 'whom t may concern.'

lie it known that l, FnnnnnIoKli/UNGER, a citizen orp the United States, residing at Ellsworth, in the county of Sheridan and State oi Nebraska, have invented certain new and useful improvements in Cutting- Tools; and l hereby declare that the 'following is afull, clear, and exact description thereof, reference being had to the accompanying drawings, which form part of this specification.

rl`his invention is a novel machine adaptable for cutting rods or pipes.

l will explain the invention with refe-rence to the accompanying drawings and summarine in the claims the novel features of construction and combinations of parts for which protection is desired.

in said drawings, Figure 1 is a side View of the machine arranged as a pipe or rod cutter.

Fig. 2 is a plan View of Fig. 1.

Fig. 3 is a. section on the line 3-3, Fig.

Fig. iis a detail view showing a tool whereby the machine can be adapted for use either as a pipe wrench or as a pipe or rod holder.

rlhe machine has an operative handle l provided with a hollow cylindric head la on one end, which may be formed integral therewith, the axis of the read being at right angles to the handle l.

In this head la is an annular ratchet disk 2, which is provided with external teeth r2a for the engagement ci a dog 3 pivoted in the handle, and which is shiitable right or left so that it can be caused to turn member 2 when the handle is swung in either direction as desired. rllhe ratchet connection between the handle and the disk 2 is well known and is not per sc part orc the present invention and therefore detailed explanation or illustration thereo'lI is unnecessary.

The disk 2 is provided on its upper outer iace with a transversely disposed slot 2b for a purpose hereinafter explained.

The head l2L is externally threaded as at 1b for the engagement of the flange 3a of a cap 3 which is screwed on .to the head la, which cap has a central opening 3".l

An annular filler ring e (Fig. 3) is placed in the head lL1 between they cap and the ratchet disk 2, so as to hold the latter in place. Af :removable tubular bushing aa may be placed in the head la and extend through the ring l and the opening in the disk 2. The bushings ia are removable and interchangeable and in using the machine for cutting a rod or pipe a bushing 4a having an internal bore corresponding to the exterior diameter of the pipe orrod to be out should be placed in the head.

The bushing la may have a flange 4:1 on its outer or lower end engaging a correspondin shoulder in the lower end or the ring 4l, anc the bushing is held in place by such flange engaged between the ring i and the cap 3.

An annular washer 2W may be placedoin an annular shoulder on the inner end of the disk 2 and between said disk and ring l (as shown in Fig. 3) to assist in centering the disk in the head.

On the side or" the handle opposite the cap 3 and adjacent the head la, is a housing 5, in which is detachably confined the shank 6a of a removable tool which may be of any desired kind or contour. rllhe particular tool shown in Fig. l has a disk cutter head by; the particular tool shown in Figs. 2 and 3, has a bevelcutting head 6 adapted to cut a half round or ball shape bevel; the particular tool shown in Fig. l has a concave head 6X provided with serrations on its inner concave face adapted tobite a pipe or rod and enable the machine to be used as a pipe or rod wrench or as a pipe or rod holder.

Each tool has a shank G provided with a slot 6b, in which is placed an expansion spring e", and when the shank and spring are inserted into the housing 5 a screw 5h is tapped through the housing and enters the outer end of the slot 6b, see Fig. 3, and con nes the tool shank in the housing, and at the same time the inner end oi' the screw forms an abutment for the spring 6C, which will naturally tend to retract the tool inwardly and away from the head la. The tool however may be projected from the housing by means of a bolt 5c tapped through the outer end of the housing; which bolt may be turned by any convenient means, and cause the tool to project from the housing the desired extent to operatively engage the pipe or rod P which is being operated upon. The Vtools are interchangeable and by removing the screw 5b one tool can be withdrawn and replaced by the desired tool, and then screw 5b replaced. The 

